#include<stdio.h>
#include<stdlib.h>

int main()
{
  printf("I am a process... mycmd!\n");
  printf("my env: %s \n",getenv("MYENV"));
  printf("os env: %s \n",getenv("PATH" ));//getenv根据环境变量名，获取环境变量内容
  return 0;
}
